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90804RE: [XP] cmm and agile?

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  • Alleman, Glen B.
    Apr 1, 2004

      XP is certainty low ceremony when compared to high ceremony CMMI
      processes. The formality of XP is a value judgment though. Compared to
      our projects that use CMMI assessed process the formality of XP is very
      low. A 64 page configuration management guide with check list as the
      working document for the Change Control Board weekly meeting would not
      likely be found on an XP project.

      In the high ceremony, high formality projects we work on, the format and
      media for the design is not defined by the team it is defined by the
      procurement regulations as a CDRL to the customer and their auditors.

      I've come to understand (and use) the fundamental differences between XP
      and not-XP is that the agile processes used on the project originate
      within the project. On not-agile projects the processes originate
      external to the project, either through contractual, regulatory, or
      policy means.

      An important Jack Welch quote that hangs in our common area is...

      "Bureaucracy protects the organization from the incompetent."

      Glen B. Alleman

      -----Original Message-----
      From: Robert C. Martin
      Subject: RE: [XP] cmm and agile?

      > I like Cockburn's two dimensional evaluation that he talks about for
      > Crystal - more people on the team and/or more damage from failure,
      > the more formal you need to be. I would either substitute or add
      > the distance between team members and between the team and customer
      > as another dimension. It fits my situation well.

      There is an implicit assumption lurking in this paragraph that XP is not
      formal. Indeed, I've heard this argument made many different times by
      different people. They say that XP is informal; or XP is low ceremony.

      I think they are wrong. I think XP is very formal and is high ceremony.
      is formal in that all the essential documents produced by XP are
      Requirements are documented as executable acceptance tests. Designs are
      documented as executable unit tests. It is high ceremony because there
      certain things that must be done as a team every day, every week, and
      month. XP does not mean ad-hoc.

      The that is as stake (the more damage from risk) the more you need to
      your unit tests first, write your acceptance tests first, and work in
      short cycles with lots of stakeholder feedback. The more people you
      have on
      the team, the more you need communication, tests, short cycles, and lots
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